National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
The present study was carried out to find the level of performance of crossbred bulls based on AFC and FLMY of their progenies under the field condition. The data of progenies of 128 crossbred bulls from three different sources BAIF, Pune, GADVASU, Ludhiana and PDC, Meerut formed the experimental units over the period of last 10 year (2006 to 2016). The bulls were placed in three groups based on their exotic inheritance and grouped into seven batches based on period at their use. Analysis of data of 743 progeny of age at first calving and 617 progenies for first lactation milk yield using General Linear Model of SPSS version 21 software was done. There is no significant effect of exotic inheritance of bulls on traits under study. Significant difference between progenies of bulls for AFC and FLMY was noticed. The annual genetic gain during the study is reduction of 9.85 days in AFC and increasing of 81.54 kg in FLMY. It indicates progressive genetic improvement for AFC and FLMY through field progeny testing in crossbred cattle of Kerala.
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